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  <div id="layout-content"><div id="function.rrd-graph" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">rrd_graph</h1>
  <p class="verinfo">(PECL rrd &gt;= 0.9.0)</p><p class="refpurpose"><span class="refname">rrd_graph</span> &mdash; <span class="dc-title">Creates image from a data</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.rrd-graph-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>rrd_graph</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
   , <span class="methodparam"><span class="type">array</span> <code class="parameter">$options</code></span>
   ) : <span class="type">array</span></div>

  <p class="para rdfs-comment">
   Creates image for a particular data from RRD file.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.rrd-graph-parameters">
  <h3 class="title">参数</h3>
  <dl>

   
    <dt>
<code class="parameter">filename</code></dt>

    <dd>

     <p class="para">
      The filename to output the graph to. This will generally end in either
      <em>.png</em>, <em>.svg</em> or
      <em>.eps</em>, depending on the format you want to output.
     </p>
    </dd>

   
   
    <dt>
<code class="parameter">options</code></dt>

    <dd>

     <p class="para">
      Options for generating image. See man page of rrd graph for all
      possible options. All options (data definitions, variable defintions, etc.)
      are allowed.
     </p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.rrd-graph-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Array with information about generated image is returned, <strong><code>FALSE</code></strong> when error
   occurs.
  </p>
 </div>

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